CN202162321U - Joint offset type crank toggle mechanism capable of being used for servo press - Google Patents
Joint offset type crank toggle mechanism capable of being used for servo press Download PDFInfo
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- CN202162321U CN202162321U CN2010206926487U CN201020692648U CN202162321U CN 202162321 U CN202162321 U CN 202162321U CN 2010206926487 U CN2010206926487 U CN 2010206926487U CN 201020692648 U CN201020692648 U CN 201020692648U CN 202162321 U CN202162321 U CN 202162321U
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Abstract
The utility model discloses a joint offset type crank toggle mechanism capable of being used for a servo press. A point O and a point D serve as fixing points; a crank is articulated with a speed control rod and a rocker in sequence; the speed control rod is articulated with a connecting rod; and the connecting rod is connected with a sliding block guide post. The mechanism is simple in structure and has small inertia of a moving part and small transmission torque; and under the condition of same technical parameters, the torque of a main shaft is only about 40 percent of a traditional press, so that the mechanism is suitable for variable speed control of a servo motor. The drive of a sliding block is changed from a flywheel drive of the traditional press into a direct drive of a motor, which is a good scheme of a servo press rod system mechanism. Compared with the traditional press in motion characteristics, the processing properties of the mechanism are greatly improved; in addition, with the adoption of the flexible control of an alternating-current servo motor, the press can finish the procedure movement of various curves according to processing requirements so as to satisfy the performance demands of the servo press for the rod system structure; and meanwhile, the joint offset type crank toggle mechanism can be applied into a main transmission structure of the press for the design and manufacture of large servo presses directly.
Description
Technical field
The utility model belongs to the punching machine in the widely used forging equipment in the metal forming manufacture field, is widely used in the metallic plate shell part, particularly automobile panel in fields such as automobile, Aero-Space, electronics and household electrical appliance.Belong to forging and pressing industrial automation equipment technical field.
Background technology
Forcing press is a widely used forging equipment in the metal forming manufacture field, and kind and quantity are various, wherein uses the most general with mechanical press.The demand for development forcing press of Modern Manufacturing Technology not only can be at a high speed, the running of high accuracy, heavy load, and should have bigger flexibility, can change the output movement rule rapidly, easily.But the kinetic characteristic of traditional mechanical forcing press is single, technology is poor for applicability.In recent years along with the technological development of AC servo machinery driving Forming Equipments; The adjustable various AC servo driving pressure machines of slide block movement curve have appearred; Make the service behaviour and the technology applicability of forcing press improve greatly, equipment develops towards flexibility, intelligentized direction.Simultaneously, servo-pressing machine has advantages such as high efficiency, high accuracy, low energy consumption and low noise.
Servo-pressing machine as third generation punch press is the most advanced equipment of automobile large-scale covering punching production; Servo-pressing machine is different with the conventional pressure machine; Owing to adopted servo motor driven, forcing press can be set different haul distance and speed according to the different production needs; Through the position detecting device of servo-pressing machine standard configuration, can guarantee the forming accuracy of bottom dead centre all the time, can reach micron order, effectively suppressed the appearance of burr and other defective works of product; But Ultra-Low Speed operation; The mould vibration is little, the service life of having improved mould greatly; Do not have flywheel and clutch part, saved electric power and lubricating oil, reduced operating cost.Servo-pressing machine has plyability, high efficiency, high accuracy, high flexibility, the low noise feature of environmental protection etc., has demonstrated fully the development trend of forging machine tool.
Domestic punch line manufacturing technology level with abroad have a long way to go, just begin aspect manufacturing and designing at small-sized servo-pressing machine at present, manufacturing and designing of large-scale servo-pressing machine is still blank.Mainly show shortage servo-pressing machine designed capacity with external gap.
The utility model content
Large-scale servo-pressing machine Design of Production Line and manufacturing technology are on the basis of conventional pressure machine, according to the demand of Sheet Metal Forming Technology development, core technology main transmission structure form and driving theory have been done revolutionary transformation,
The driving power of slide block changes motor direct-drive into by the flywheel driving of conventional pressure machine.
Research and development produce large-scale servo-pressing machine, and key technology wherein is exactly the transmission requirement that can the leverage drive mechanism adapt to servo-pressing machine.
The utility model technology of this mechanism can directly apply to manufacturing and designing of large-scale servo-pressing machine.
Servo-pressing machine leverage mechanism should satisfy following requirement: satisfy the requirement of servo characteristic, simple in structure, little, the main Motor torque of movement parts rotary inertia and be that the optimised process curve that moment of torsion is little, curve movement requires near Sheet Metal Forming Technology on the final drive shaft, tonnage demand that power curve promptly satisfies forcing press satisfy the requirement of drawing process again, above two specific character curves are inversely prroportional relationship in practical application; Therefore to find out best resultant curve, reduce the control difficulty of servomotor.
For solving the problems of the technologies described above; The utility model has adopted following technical scheme: a kind of node offset crank elbow-bar mechanism that can be used for servo-pressing machine; Its leverage mechanism is a fixing point with O point and D point; Crank (OA) order hinged speed control rod (ABC) and rocking bar (DB), the C point and the C on the connecting rod (CS) of speed control rod are point articulated, and connecting rod (CS) is connected with slide block guide post at the S point.Adopt the concrete structure of this leverage mechanism design to be described below: gear passes through bearing spider in box-shaped upper beam body, and is meshed with master gear, and this master gear and crank are fixed as one through bolt and pin; Crank is an eccentric wheel structure, through sliding supported condition on main shaft; Main shaft also passes through bolted on the upper beam body, and speed control rod and crank are hinged through sliding bearing, and on mandrel, this mandrel is also fastening through bolt and upper beam body through sliding supported condition for rocking bar, and the other end and the speed control rod of rocking bar are hinged; The upper end of connecting rod and speed control rod is hinged and upper end lower end and slide block guide post is hinged, slide block guide post and be embedded in and be the gap that is slidingly matched between the guide pin bushing in the upper beam body.
The utility model has satisfied the characteristic requirements of servo-pressing machine to member structure fully, can be applied to easily in the main transmission structure of forcing press simultaneously, is applied to manufacture and design.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is servo-pressing machine member structure figure.
Fig. 2 is the slide block movement curve and the mechanics curve of this leverage practical application.
Fig. 3, Fig. 4, Fig. 5 are the servo-pressing machine main transmission structure figure that the utility model research and development are designed.
The specific embodiment
Concrete member structure such as accompanying drawing 1:O point and D point are fixing point.Crank 1 (OA), speed control rod 3 (ABC) and rocking bar 2 (DB) constitute a crank and rocker mechanism.Driving crank 1 rotates counterclockwise around the O point, drives speed control rod 3 and does oscillating motion with rocking bar 2, and C point and connecting rod 4 (SC) on the speed control rod 3 are hinged; And drivening rod 4 swings; Connecting rod 4 connects with slide block guide post 5 at the S point, drives slide block and moves up and down, and the kinetic characteristic that S is ordered is the kinetic characteristic of slide block.This mechanism is actual to be the elbow-bar mechanism that has been made up of a node biasing speed control rod 3, fork 2, connecting rod 4, and the motive power of toggle link derives from crank 1.
These leverage characteristics are: when stamping press P confirms, can reduce the needed driving torque of crank greatly.Made full use of the reinforcement characteristic of elbow-bar mechanism in the course of work, made the driving moment of O point crank pass to slide block through the reinforcement of elbow-bar mechanism.And stressed also the reducing accordingly of D point main shaft in this mechanism, transmission mechanism also becomes very simple.The S point adopts after the node biasing, makes transmission system left and right directions size be able to reduction, can satisfy the requirement of practical application mechanism size.If adopt node just to put, this mechanism just can only be applied to the smaller forcing press of ram travel; Perhaps forcing press is put the beams in place and is exceeded beyond the left and right pillar, and effect is bad.
Because this mechanism structure is simple, movement parts inertia is little, and driving torque is little, is fit to the speed Control of servomotor.It is a good servo-pressing machine leverage mechanism.
Under identical technical parameter condition, the moment of torsion of main shaft has only about 40% of conventional pressure machine.The output torque of servomotor is the key factor that the large-scale servo-pressing machine of restriction manufactures and designs, so this mechanism is fit to the torque demand of servomotor.
This utility model motion of mechanism characteristic such as accompanying drawing 2 are compared with traditional forcing press, and operational characteristic is greatly improved, and add the Flexible Control of AC servo motor, make forcing press accomplish the program motion of various curves according to technological requirement.
Enforcement body's explanation: see Fig. 3, Fig. 4
Servomotor driven gear axle 7 is done and is clockwise rotated during work, and gear shaft 7 is meshed with master gear 6,
Drive cranks 1 through master gear 6 and do around main shaft 8 and rotate counterclockwise, crank 1 drives speed control rod 3 motions,
While speed control rod 3 is fixing orbiting motion in the restriction lower edge of rocking bar 2, and the upper end of drivening rod 4 swings back and forth variable motion about connecting rod 4 drive slide block guide posts 5 are done, the press work of completion forcing press under the guiding of guide pin bushing 11.
Claims (2)
1. node offset crank elbow-bar mechanism that can be used for servo-pressing machine; It is characterized in that: its leverage mechanism is a fixing point with O point and D point; Crank (1) order hinged speed control rod (3) and rocking bar (2); The C point and the C on the connecting rod (4) of said speed control rod (3) are point articulated, and connecting rod (4) is connected with slide block guide post (5) at the S point.
(2) as claimed in claim 1, wherein the servo press can be used for a node offset crank toggle mechanism, characterized in that: the gear (7) by a bearing support on the beam in the box-shaped body (9), and with main gear (6) to engage the main gear (6) and the crank (1) by a bolt and a pin fixed to one; the crank (1) of the eccentric wheel structure, by sliding the main shaft bearing (8); spindle (8) is fastened to the upper beam by a bolt body (9), the speed control lever (3) and the crank (1) by sliding the hinge bearing, rocker (2) by sliding the mandrel bearing support (10), The mandrel (10) is the body by bolts and the upper beam (9) fastening lever (2) and the other end of the speed control lever (3) is hinged; rod (4) and the upper end of the speed control lever (3) The lower end of the slide hinge guide column (5) of the upper hinge, slider guide column (5) and embedded in the main body of the upper beam (9) of the guide sleeve (11) with the gap between the sliding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206926487U CN202162321U (en) | 2010-12-30 | 2010-12-30 | Joint offset type crank toggle mechanism capable of being used for servo press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206926487U CN202162321U (en) | 2010-12-30 | 2010-12-30 | Joint offset type crank toggle mechanism capable of being used for servo press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202162321U true CN202162321U (en) | 2012-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206926487U Expired - Fee Related CN202162321U (en) | 2010-12-30 | 2010-12-30 | Joint offset type crank toggle mechanism capable of being used for servo press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202162321U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103317071A (en) * | 2013-05-23 | 2013-09-25 | 西安交通大学 | Driving system of alternating current servo direct-driving type hot die forging press |
| CN103586383A (en) * | 2013-10-28 | 2014-02-19 | 西安交通大学 | Drive system applicable to large-tonnage servo direct-driven hot die forging press |
| CN106739061A (en) * | 2015-11-24 | 2017-05-31 | 湖北海岚数控机床有限公司 | A kind of bent axle toggle rod type Intelligent servo forcing press |
| CN106925704A (en) * | 2017-05-05 | 2017-07-07 | 桐乡市凯盛精密机械有限公司 | Cold forging punch press |
| CN112721268A (en) * | 2020-12-29 | 2021-04-30 | 深圳昶晖科技有限公司 | Press machine |
-
2010
- 2010-12-30 CN CN2010206926487U patent/CN202162321U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103317071A (en) * | 2013-05-23 | 2013-09-25 | 西安交通大学 | Driving system of alternating current servo direct-driving type hot die forging press |
| CN103586383A (en) * | 2013-10-28 | 2014-02-19 | 西安交通大学 | Drive system applicable to large-tonnage servo direct-driven hot die forging press |
| CN103586383B (en) * | 2013-10-28 | 2016-04-13 | 西安交通大学 | A kind of transmission system being applicable to large-tonnage servo direct driving formula hotdie forging press |
| CN106739061A (en) * | 2015-11-24 | 2017-05-31 | 湖北海岚数控机床有限公司 | A kind of bent axle toggle rod type Intelligent servo forcing press |
| CN106925704A (en) * | 2017-05-05 | 2017-07-07 | 桐乡市凯盛精密机械有限公司 | Cold forging punch press |
| CN112721268A (en) * | 2020-12-29 | 2021-04-30 | 深圳昶晖科技有限公司 | Press machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120314 Termination date: 20151230 |
|
| EXPY | Termination of patent right or utility model |